Tim Tollefson
ID 614407
Born : 1985 Cat. M40 Ultrarunner since 2014 USA
35
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
8
Countries visited ?AUSAustraliaCHNChinaESPSpainFRAFranceHKGHong KongITAItalyPORPortugalUSAUnited States
1,1%
Rank quotient ?This runner's calculation uses 35 eligible race(s): Σ(rank − 1) = 186; Σ finishers = 17 540. 186 / 17 540 × 100 = 1.06%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed35
Km — ultra races3 095 km
> 100 km11
> 160 km6
Longest race170,0 km
14ème Ultra Trail Tour du Mont Blanc (UTMB) — 26/8/2016

Km per year (ultra races)

291
3 races
2022
2023
200
2 races
2024
2025
161
1 race
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win17
🏆 Win M17
🏅 Top 327
🏅 Top 3 M27
Longest winning streak6
Current streak0

Records

50 km3h13'28100 km8h06'0450 mi6h08'11100 mi13h28'04

HISTORY

35 race(s)
DateRacePerf.Rk
2026
22.08 100mi USA44th Leadville Trail 100 Mile 16:45:14 h3 🥉
2024
27.04 100km USA11th The Canyons Endurance 100 km Run 9:19:09 h7
10.02 99.9km USA11th Black Canyon Trail 100 km Run 8:06:04 h11
2022
25.06 100mi USA49th Western States 100 Mile Endurance Run 20:41:28 h33
02.04 50mi USA42th American River 50 Mile Endurance Run 6:08:11 h1 🏆
05.03 50km USA32nd Way Too Cool 50K Endurance Run 3:13:28 h1 🏆
2021
26.06 100mi USA48th Western States 100 Mile Endurance Run 16:55:49 h5
22.05 55km USA25th Bishop High Sierra Ultramarathons 55 km 3:52:44 h1 🏆
2020
31.10 100mi USA18th Javelina Jundred 100 Mile Endurance Run 13:28:04 h1 🏆
14.03 50mi USA7th Pioneer Spirit 50M 6:22:31 h1 🏆
15.02 50km USA8th FOURmidable 50K 3:43:30 h1 🏆
2019
02.11 51.7km CHN5th Ultra Trail Mt Siguniang 50 km 7:38:14 h1 🏆
28.06 120km ITA13^ Lavaredo Ultra Trail by UTMB - 120K 12:18:47 h1 🏆
27.04 115km POR11. MIUT - Madeira Island Ultra Trail 115 km 14:36:18 h3 🥉
16.03 50km USA4th Ruck a Chuck 50K 3:43:36 h1 🏆
16.02 50km USA7th FOURmidable 50K 3:43:18 h1 🏆
2018
21.07 50km USA11th Speedgoat 50k 5:37:35 h3 🥉
22.06 120km ITA12^ Lavaredo Ultra Trail by UTMB - 120K 12:44:44 h3 🥉
02.06 50km USA22th Bishop High Sierra Ultramarathons 50 km 3:58:44 h1 🏆
2017
01.09 167.7km FRA15ème Ultra Trail Tour du Mont Blanc 19:53:00 h3 🥉
29.07 50km USA10th Speedgoat 50k 5:23:32 h2 🥈
20.05 100km AUS10th Ultra-Trail Australia 100 km 8:52:00 h1 🏆
14.01 100km HKG7th Hong Kong 100 Ultra Trail Race 10:13:40 h5
2016
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 22:30:28 h3 🥉
19.06 54km USA1st The Broken Arrow Skyrace 5:04:36 h2 🥈
21.05 50km USA31st Silver State 50 km 3:58:51 h1 🏆
07.05 50km USA3rd The Canyons Endurance 50 km Run 4:40:21 h1 🏆
04.03 125km ESPTransgrancanaria 125 km 19:37:14 h101
2015
28.08 101km ITA10ème Courmayeur-Champex-Chamonix 12:06:56 h2 🥈
09.05 50km USA9th Whoo's In El Moro 50k Trail Races - Spring Edition 3:35:58 h1 🏆
11.04 50mi USA7th Lake Sonoma 50 Mile Race 6:47:15 h7
07.03 50km USA26th Way Too Cool 50K Endurance Run 3:20:20 h3 🥉
2014
06.12 50mi USA8th Endurance Challenge - California Trail 50 Mile 6:28:47 h8
12.10 50km USA8th Whoo's In El Moro 50k Trail Races - Fall Edition 3:25:26 h1 🏆
21.09 50km USA5th Flagline Trail Fest 50K 3:24:05 h1 🏆